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When AMD revealed an “ambidextrous” processor roadmap based on both x86 and ARM cores last Fall, it saved one surprise for today: they’ll be pin compatible!
As part of its roadmap update today, AMD announced that it has licensed 64-bit ARM architecture for use in developing “custom high-performance cores for high-growth markets.” Additionally, the company revealed details of “Project SkyBridge,” a combination x86/ARM strategy aimed at delivering “ambidextrous computing and graphics performance using a shared, flexible infrastructure” suitable to embedded, server, and client applications, as well as “semi-custom solutions.”

AMD’s ARM+x86 market projection
(click image to enlarge)

Although AMD had already revealed much of this last September, today’s announcement provided a clearer picture of the company’s future processor roadmap, including what may well be its most interesting feature: the new family’s ARM- and x86-based processors will be pin-compatible with each other.

We extracted the slides below from today’s Project Skybridge announcement.

AMD Project Skybridge roadmap
(click images to enlarge)

In conjunction with its Project Skybridge and K2 announcement, AMD said that today it “demonstrated for the first time its 64-bit ARM-based AMD Opteron A-Series processor, codenamed ‘Seattle,’ running a Linux environment derived from the Fedora Project.” The Fedora-based Linux environment is said to enable development — and migration between — applications based on both x86- and ARM-based processors using common tools.

AMD’s complete announcement, including two presentations, is available here.